CN219856888U - Child seat fixing structure for automobile - Google Patents

Abstract

The utility model provides a child seat fixing structure for an automobile, which comprises a connecting frame capable of sliding back and forth on a sheet metal part of an automobile body, two hooks fixedly connected with the front end of the connecting frame and used for connecting the child seat, a hook cover plate fixedly connected with the sheet metal part of the automobile body and positioned in front of the connecting frame, and a force limiting buffer mechanism arranged on each hook; the two hooks respectively penetrate through the corresponding hook cover plates and can extend out of the gaps, and the force limiting buffer mechanism comprises a force limiting spring which is pressed between the hook cover plates and the connecting frame. According to the fixing structure disclosed by the utility model, when the acceleration of the automobile is large, the force limiting spring is compressed, and the hooks move forwards along with the connecting frame, so that the child seat and the child gradually stop moving absolutely, the buffer effect is achieved, and the safety of the child is better ensured. When the automobile stops, the compressed force limiting spring is restored to deform to enable the connecting frame and the hook to reset, automatic reset can be achieved, and the service life is long.

Description

Child seat fixing structure for automobile

Technical Field

The utility model belongs to the field of automobile child seat fixing structures, and particularly relates to an automobile child seat fixing structure.

Background

With the increase of safety awareness, people are increasingly concerned about the safety problem of children riding in automobiles. Child seats are commonly used when riding in vehicles. Currently, the child seat on the market is mainly connected with the buckle on the child seat by two hooks at the joint of the automobile seat cushion and the backrest.

CN201410683722.1 discloses a child seat fixing structure with force limiting protection device for automobile, which is connected with child seat by two hooks, and is also provided with a force limiting mechanism, when the automobile collides, the force limiting mechanism starts to act, the force limiting brace of U shape is straightened by bending, absorbs a certain energy and releases a certain distance, so that the hooks connected with child seat properly move forward, the child is prevented from bearing higher deceleration, and the buffer effect is achieved. Because the one end and the couple rigid coupling of the limit power brace of "U" type of aforementioned publication, the other end is the free end, and when the vehicle collision, the limit power brace of "U" type is straightened by the bending, and the limit power brace of "U" type is difficult to automatic re-setting to initial state, needs manual reset or change.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art, and aims to provide a child seat fixing structure for an automobile.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the automobile child seat fixing structure comprises a connecting frame capable of sliding back and forth on a sheet metal part of a car body, two hooks fixedly connected with the front end of the connecting frame and used for connecting the child seat, a hook cover plate fixedly connected with the sheet metal part of the car body and positioned in front of the connecting frame, and a force limiting buffer mechanism arranged on each hook; a gap for the hooks to pass through is formed between the backrest and the cushion of the automobile, the hook cover plate is positioned at the rear side of the gap, the two hooks respectively pass through the corresponding hook cover plates and can extend out of the gap, and the force limiting buffer mechanism comprises a force limiting spring which is pressed between the hook cover plate and the connecting frame.

According to the technical scheme, when the whole automobile runs, the force limiting spring is not compressed, the child seat and the fixing structure are connected into a whole, the same movement is kept, and the functions of fixedly connecting and limiting the child seat to move forwards along with inertia force can be achieved; when the acceleration of the automobile is large, the force limiting spring is compressed, and the hook moves forwards along with the connecting frame, so that the child seat and the child gradually stop moving absolutely, a buffering effect is achieved, and the safety of the child is better guaranteed. When the automobile stops, the compressed force limiting spring is restored to deform to enable the connecting frame and the hook to reset, automatic reset can be achieved, and the service life is long.

In a preferred embodiment of the utility model, the sheet metal part of the vehicle body is also provided with a driving device for driving the connecting frame to move back and forth so as to enable the hook to extend out of the backrest of the vehicle forwards or retract backwards through the gap, and the driving device comprises a knob embedded on the front surface of the backrest of the vehicle and a transmission mechanism for connecting the knob and the connecting frame; when the hook extends forwards to the outside of the backrest of the automobile, the force limiting spring is in a natural extension state, and the two ends of the force limiting spring just generate acting force with the hook cover plate and the connecting frame.

According to the technical scheme, the hooks can move back and forth through the operation knob, in a normal state, the hooks retract into the automobile backrest through the gaps, the hooks cannot be exposed out of the automobile backrest, passengers cannot contact the hooks, and the comfort of the passengers sitting on the back row seats is improved.

In a preferred embodiment of the utility model, the transmission mechanism comprises a first wedge block fixedly connected with the rear surface of the connecting frame, a second wedge block which is in sliding fit with the inclined surface of the first wedge block and is positioned at the rear side of the first wedge block, an adjusting disc which is abutted with the second wedge block and is arranged in parallel with the knob, a connecting rod which is connected with the adjusting disc and the knob and extends along the front-rear direction, and a reset structure which resets the first wedge block and the second wedge block; the adjusting disc can enable the second wedge block to transversely move on the sheet metal part of the vehicle body so as to enable the first wedge block to move forwards by rotating the knob forwards; through reverse rotation knob, under reset structure's effect, first wedge and second wedge can reset.

Among the above-mentioned technical scheme, make its lateral movement through setting up adjustment disk top second wedge, through setting up first wedge and second wedge with lateral movement turn into back-and-forth movement, simple structure, convenient operation.

In a preferred embodiment of the present utility model, the reset structure includes a clamping groove provided on an inclined surface of one of the first wedge block and the second wedge block and extending in an inclined direction of the inclined surface, and a clamping post provided on the inclined surface of the other and clamped in the clamping groove and slidable in the clamping groove; the adjusting disc is a cam disc or a disc eccentrically connected with the connecting rod; the reset structure also comprises a reset spring which is connected with the second wedge block and extends along the left-right direction.

According to the technical scheme, when the hook moves backwards to reset, the second wedge block resets when the reset spring, the second wedge block is connected with the first wedge block through the clamping groove and the clamping column, and the second wedge block pulls the first wedge block to move backwards to reset.

In a preferred embodiment of the present utility model, the reset structure includes a clamping groove provided on an inclined surface of one of the first wedge block and the second wedge block and extending in an inclined direction of the inclined surface, and a clamping post provided on the inclined surface of the other and clamped in the clamping groove and slidable in the clamping groove; the adjusting disc is a disc eccentrically connected with the connecting rod; the reset structure also comprises an annular ball groove arranged on the outer wall of the adjusting disc and a spherical protrusion which is arranged on the second wedge block, is clamped into the annular ball groove and can slide in the annular ball groove.

In the technical scheme, when the hook moves backwards to reset, the second wedge-shaped block is connected with the adjusting disc through the annular ball groove and the spherical bulge, and the adjusting disc pulls the second wedge-shaped block to move transversely to reset the second wedge-shaped block; the second wedge block is connected with the first wedge block through the clamping groove and the clamping column, and the second wedge block pulls the first wedge block to move backwards to reset.

In another preferred embodiment of the present utility model, both the left and right ends of the connection frame are protruded backward, and the first wedge block, the second wedge block and the adjustment plate are installed in the middle of the rear side of the connection frame.

In another preferred embodiment of the utility model, the front end of the force limiting spring is fixedly connected with the hook cover plate, and the rear end of the force limiting spring is fixedly connected with a second rubber cushion sleeved outside the hook in a ring manner; when the hook extends forwards to the outside of the automobile backrest, the force limiting spring is in a natural extension state, and the rear end of the second rubber cushion is just abutted with the connecting frame.

In the technical scheme, the second rubber cushion is arranged between the force limiting spring and the connecting frame, and when the connecting frame and the hook move forwards to enable the hook to extend out of the automobile backrest, the second rubber cushion is soft, so that abnormal sound can be prevented from being generated due to the fact that the connecting frame and the force limiting spring are in win contact, and noise is reduced.

In another preferred embodiment of the utility model, the hook comprises two longitudinal rods extending along the front-back direction and a transverse rod with left and right ends fixedly connected with the front ends of the two longitudinal rods respectively, and each longitudinal rod is sleeved with a force limiting spring.

In another preferred embodiment of the utility model, a limiting block fixedly connected with the two longitudinal rods is further arranged at the rear of the transverse rod.

In the technical scheme, when the hook moves forwards due to inertia force, the arrangement of the limiting block can prevent the buckle on the child seat from being separated from the hook, so that the reliability of the fixing structure is improved

In another preferred embodiment of the utility model, the front side of the limiting block is fixedly connected with a first rubber pad made of elastic material.

Among the above-mentioned technical scheme, through setting up first cushion so that the buckle on the children's seat is more firm with the connection of couple, can not become flexible.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a child seat fixing structure for an automobile according to the first embodiment, in which the hooks are retracted back into the gaps between the backrest and the seat cushion of the automobile.

Fig. 2 is a schematic structural view of a child seat fixing structure for an automobile according to the first embodiment, in which the hooks extend forward beyond the gap between the backrest and the seat cushion of the automobile.

Fig. 3 is a schematic structural view of the connection of the adjusting disk and the second wedge block in the second embodiment.

Reference numerals in the drawings of the specification include: the automobile body sheet metal part 10, the connecting frame 20, the hook 30, the longitudinal rod 31, the cross rod 32, the hook cover plate 40, the force limiting buffer mechanism 50, the force limiting spring 51, the second rubber cushion 52, the driving device 60, the knob 61, the first wedge block 62, the clamping groove 621, the second wedge block 63, the clamping column 631, the spherical protrusion 632, the adjusting disk 64, the annular ball groove 641, the connecting rod 65, the return spring 66, the limiting block 70 and the first rubber cushion 71.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "vertical," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

Example 1

The embodiment provides a child seat fixing structure for an automobile, which is arranged on a rear seat of the automobile. As shown in fig. 1 and 2, in a preferred embodiment, the child seat fixing structure includes a link 20 slidable back and forth on a vehicle body sheet metal part 10, two hooks 30 fixedly coupled to the front end of the link 20 for connecting the child seat, a hook cover 40 fixedly coupled to the vehicle body sheet metal part 10 in front of the link 20, and a force limiting buffer mechanism 50 mounted on each of the hooks 30. The sheet metal part 10 is hidden in the rear seat of the automobile, a sliding groove extending along the front-rear direction is arranged on the sheet metal part 10, and the connecting frame 20 is provided with a sliding column which is clamped in the sliding groove and can slide in the sliding groove.

A gap for the hooks 30 to pass through is formed between the backrest and the cushion of the automobile, the hook cover plate 40 is positioned at the rear side of the gap, the hook cover plate 40 is welded and fixed with the automobile body sheet metal part 10, the two hooks 30 respectively pass through the corresponding hook cover plates 40 and can extend out of the gap, and the force limiting buffer mechanism 50 comprises a force limiting spring 51 which is pressed between the hook cover plate 40 and the connecting frame 20.

By adopting the technical scheme, the hooks 30 penetrate through the gap part and are positioned outside the backup plate, and people clamp the buckles of the child seat into the hooks 30 to fix the child seat. The force limiting spring 51 has enough rigidity, and needs enough external force to compress the force limiting spring, so that the force limiting spring 51 cannot be compressed when the automobile is stationary, in acceleration running, in constant speed running and in normal speed reduction running (namely, when the automobile is in normal running), the child seat is connected with the fixing structure into a whole, the same movement is kept, and the functions of fixedly connecting and limiting the child seat to move forwards along with inertia force can be achieved. When the automobile collides and the collision acceleration is large, or the automobile brakes rapidly and the deceleration is large (namely, the acceleration of the automobile is large), the generated inertia force is large, so that the connecting frame 20 moves forwards against the elasticity of the force limiting spring 51, at the moment, the force limiting spring 51 is compressed, the hook 30 moves forwards along with the connecting frame 20, and the child seat and the child gradually stop the absolute movement, so that the buffer effect is achieved, and the safety of the child is better ensured. When the automobile stops, the compressed force limiting spring 51 returns to its deformed state, and the link 20 and the hook 30 are restored.

It should be noted that, the anchoring point where the user can connect the top of the backrest of the child car seat to the back of the car seat through the pull belt is the prior art, and is not described in detail herein.

In the present embodiment, the hook 30 includes two longitudinal bars 31 extending in the front-rear direction, and a cross bar 32 having both left and right ends fixedly connected to the front ends of the two longitudinal bars 31, and a force limiting spring 51 is provided on each longitudinal bar 31.

Preferably, the rear of the cross bar 32 is further provided with a limiting block 70 fixedly connected with the two longitudinal bars 31, the front side of the limiting block 70 is fixedly connected with a first rubber pad 71 made of elastic material, the first rubber pad 71 is made of rubber, and a buckle on the child seat is buckled between the cross bar 32 of the hook 30 and the limiting block 70. When the automobile is stationary or normally running, after the buckle of the child seat is clamped into the hook 30, the rear surface of the child seat is abutted against the front surface of the automobile backrest, and the buckle of the child seat can be well connected with the hook 30; when the hanger 30 moves forward due to inertial force, the stopper 70 can prevent the buckle on the child seat from separating from the hanger 30, thereby improving the reliability of the fixing structure.

In another preferred embodiment, the body panel 10 is also provided with a drive 60 for driving the carriage 20 back and forth to extend the hook 30 forwardly out of the vehicle back through the slot or retract it rearwardly. The driving device 60 includes a knob 61 embedded in the front surface of the backrest of the automobile, and a transmission mechanism connecting the knob 61 and the connection frame 20. When the hook 30 is extended forward to the outside of the backrest of the automobile, the force limiting spring 51 is in a natural extension state and both ends thereof just generate acting force with the hook cover plate 40 and the connecting frame 20, so that the driving device 60 only needs to move the connecting frame 20 and the hook 30 forward and backward without overcoming the elastic force of the force limiting spring 51, and people can realize the effect by manually rotating the knob 61 without effort.

In the embodiment, the connecting frame 20 can move back and forth through the operation knob 61, the connecting frame 20 moves back to enable the hooks 30 to retract into the automobile backrest through the gaps, the hooks 30 cannot be exposed outside the automobile backrest, passengers cannot contact the hooks 30, and the comfort of the passengers sitting on the rear seats is improved; when the child seat is required to be mounted on the automobile rear seat, the connecting frame 20 is moved forwards through the operation knob 61, the front part of the hook 30 passes through the gap to be exposed out of the automobile backrest, and then the buckle on the child seat is buckled on the hook 30, so that the child seat is convenient to mount.

Specifically, in the present embodiment, the transmission mechanism includes a first wedge 62 fixedly connected to the rear surface of the link 20, a second wedge 63 slidably fitted to the inclined surface of the first wedge 62 and positioned on the rear side thereof, an adjustment plate 64 abutted against the second wedge 63 and disposed in parallel with the knob 61, a connecting rod 65 connecting the adjustment plate 64 and the knob 61 and extending in the front-rear direction, and a reset structure resetting the first wedge 62 and the second wedge 63. Preferably, both left and right ends of the connection frame 20 are protruded rearward, and the first wedge block 62, the second wedge block 63 and the adjustment plate 64 are installed in the middle of the rear side of the connection frame 20, so that the fixing structure is more compact.

The reset structure includes a slot 621 formed on the inclined surface of one of the first wedge 62 and the second wedge 63 and extending in the inclined direction of the inclined surface, and a locking post 631 formed on the inclined surface of the other and locked in the slot 621 and slidable in the slot 621, such as the slot 621 formed on the inclined surface of the rear side of the first wedge 62 and the locking post 631 formed on the inclined surface of the front side of the second wedge 63.

In this embodiment, the adjustment plate 64 is a cam plate or a disc eccentrically connected to the connecting rod 65. The reset structure further comprises a reset spring 66 which is connected with the second wedge-shaped block 63 and extends along the left-right direction, one end of the reset spring 66 is fixedly connected with the second wedge-shaped block 63, and the other end of the reset spring 66 is fixedly connected with a fixed block on the sheet metal part 10 of the vehicle body.

In this embodiment, by rotating the knob 61 in the forward direction, the adjustment disk 64 can move the second wedge 63 laterally on the body sheet metal part 10 to move the first wedge 62 forward; by rotating the knob 61 in the reverse direction, the first wedge 62 and the second wedge 63 can be reset by the reset structure.

As shown in fig. 1 and 2, the adjusting disk 64 is provided on the right side of the second wedge 63, and the inclined surface of the second wedge 63 is inclined from the rear to the front from the left to the right. When it is desired to extend the hanger 30 out of the backrest of the automobile, for example, by rotating the knob 61 clockwise, the knob 61 rotates the adjusting disk 64 through the connecting rod 65, the adjusting disk 64 rotates to move the second wedge 63 leftwards against the elastic force of the return spring 66, and the inclined surface of the second wedge 63 slides on the inclined surface of the first wedge 62, thereby moving the first wedge 62 forwards, and the first wedge 62 moves the connecting frame 20 and the hanger 30 forwards. When it is desired to retract the hanger 30 into the backrest of the automobile, the knob 61 is rotated counterclockwise, the knob 61 rotates the adjustment plate 64 by the connecting rod 65 to reset, the second wedge 63 moves rightward by the action of the return spring 66, the locking post 631 of the second wedge 63 slides in the locking groove 621 of the first wedge 62 and pulls the first wedge 62 to move rearward, and the first wedge 62 moves the connecting frame 20 and the hanger 30 rearward to reset.

In another preferred embodiment, the front end of the force limiting spring 51 is fixedly connected with the hook cover plate 40, the rear end of the force limiting spring 51 is fixedly connected with a second rubber pad 52 sleeved outside the hook 30, the second rubber pad 52 is made of rubber, when the hook 30 extends forwards to the outside of the backrest of the automobile, the force limiting spring 51 is in a natural extension state, and the rear end of the second rubber pad 52 is just abutted against the connecting frame 20. The second rubber cushion 52 is arranged between the force limiting spring 51 and the connecting frame 20, and when the connecting frame 20 and the hook 30 move forwards to enable the hook 30 to extend out of the automobile backrest, the second rubber cushion 52 is soft, so that abnormal sound caused by the fact that the connecting frame 20 and the force limiting spring 51 are in contact can be avoided, and noise is reduced.

Example two

The structural principle of this embodiment is basically the same as that of the first embodiment, except that the structure of the reset structure that resets the first wedge 62 and the second wedge 63 is different. As shown in fig. 3, in the present embodiment, the reset structure includes a catching groove 621 provided on the inclined surface of one of the first wedge block 62 and the second wedge block 63 and extending in the inclined direction of the inclined surface, and a catching post 631 provided on the inclined surface of the other and caught in the catching groove 621 and slidable in the catching groove 621.

In this embodiment, the adjusting disk 64 is a disk eccentrically fixed to the connecting rod 65. The reset structure further includes an annular ball groove 641 provided on the outer wall of the adjustment plate 64, and a spherical protrusion 632 provided on the second wedge 63 that is caught in the annular ball groove 641 and is slidable in the annular ball groove 641. Preferably, the right side of the second wedge 63 has an arcuate recess which mates with the outer wall of the adjustment plate 64, with a spherical projection 632 disposed in the arcuate recess, and the adjustment plate 64 is partially embedded in the arcuate recess and rotatably coupled thereto.

When it is necessary to extend the hanger 30 to the outside of the backrest of the automobile, the knob 61 is rotated clockwise, the knob 61 rotates the adjusting disk 64 through the connecting rod 65, the adjusting disk 64 rotates the second wedge 63 to move leftwards, the inclined surface of the second wedge 63 slides on the inclined surface of the first wedge 62, thereby moving the first wedge 62 forwards, and the first wedge 62 moves the connecting frame 20 and the hanger 30 forwards. When it is desired to retract the hanger 30 into the automobile backrest, the knob 61 is rotated counterclockwise, the knob 61 rotates the adjustment plate 64 through the connection rod 65 to reset, the spherical protrusion 632 of the second wedge 63 slides in the annular spherical groove 641 of the adjustment plate 64, the adjustment plate 64 pulls the second wedge 63 to move rightward to reset, the snap post 631 of the second wedge 63 slides in the snap groove 621 of the first wedge 62 and pulls the first wedge 62 to move rearward, and the first wedge 62 moves the connection frame 20 and the hanger 30 rearward to reset.

In the description of the present specification, reference to the terms "preferred implementation," "one embodiment," "some embodiments," "example," "a particular example" or "some examples" and the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The automobile child seat fixing structure is characterized by comprising a connecting frame capable of sliding back and forth on a sheet metal part of a car body, two hooks fixedly connected with the front end of the connecting frame and used for connecting a child seat, a hook cover plate fixedly connected with the sheet metal part of the car body and positioned in front of the connecting frame, and a force limiting buffer mechanism arranged on each hook;

a gap for the hooks to pass through is formed between the backrest and the cushion of the automobile, the hook cover plate is positioned at the rear side of the gap, the two hooks respectively pass through the corresponding hook cover plates and can extend out of the gap, and the force limiting buffer mechanism comprises a force limiting spring which is pressed between the hook cover plate and the connecting frame.

2. The child seat fixing structure for automobile according to claim 1, wherein the vehicle body sheet metal part is further provided with a driving device for driving the connecting frame to move back and forth so as to enable the hook to extend out of the automobile backrest or retract back through the gap, and the driving device comprises a knob embedded in the front surface of the automobile backrest and a transmission mechanism for connecting the knob and the connecting frame;

when the hook extends forwards to the outside of the backrest of the automobile, the force limiting spring is in a natural extension state, and the two ends of the force limiting spring just generate acting force with the hook cover plate and the connecting frame.

3. The child seat fixing structure for automobile according to claim 2, wherein the transmission mechanism comprises a first wedge block fixedly connected with the rear surface of the connecting frame, a second wedge block slidingly fitted with the inclined surface of the first wedge block and positioned at the rear side thereof, an adjusting disk abutted with the second wedge block and arranged in parallel with the knob, a connecting rod connecting the adjusting disk and the knob and extending in the front-rear direction, and a resetting structure resetting the first wedge block and the second wedge block;

the adjusting disc can enable the second wedge block to transversely move on the sheet metal part of the vehicle body so as to enable the first wedge block to move forwards by rotating the knob in the forward direction;

by rotating the knob reversely, the first wedge block and the second wedge block can be reset under the action of the reset structure.

4. The child seat fixing structure for automobile according to claim 3, wherein the return structure includes a catching groove provided on an inclined surface of one of the first and second wedge blocks and extending in an inclined direction of the inclined surface, and a catching post provided on an inclined surface of the other and caught in the catching groove and slidable in the catching groove;

the adjusting disc is a cam disc or a disc eccentrically connected with the connecting rod;

the reset structure further comprises a reset spring which is connected with the second wedge block and extends along the left-right direction.

5. The child seat fixing structure for automobile according to claim 3, wherein the return structure includes a catching groove provided on an inclined surface of one of the first and second wedge blocks and extending in an inclined direction of the inclined surface, and a catching post provided on an inclined surface of the other and caught in the catching groove and slidable in the catching groove;

the adjusting disc is a disc eccentrically connected with the connecting rod;

the reset structure further comprises an annular ball groove arranged on the outer wall of the adjusting disc, and a spherical protrusion which is arranged on the second wedge block, is clamped into the annular ball groove and can slide in the annular ball groove.

6. The child seat fastening structure for automobile according to any one of claims 3 to 5, wherein both left and right ends of the link are protruded rearward, and the first wedge block, the second wedge block and the adjustment plate are installed in the middle of the rear side of the link.

7. The child seat fixing structure for automobile according to any one of claims 2 to 5, wherein the front end of the force limiting spring is fixedly connected with a hook cover plate, and the rear end of the force limiting spring is fixedly connected with a second rubber pad sleeved outside the hook;

when the hook extends out of the backrest of the automobile forwards, the force limiting spring is in a natural extension state, and the rear end of the second rubber cushion is just abutted with the connecting frame.

8. The child seat fastening structure for automobile according to any one of claims 1 to 5, wherein the hanger comprises two longitudinal bars extending in a front-rear direction, and a cross bar having left and right ends fixedly connected to front ends of the two longitudinal bars, and the force limiting spring is sleeved on each longitudinal bar.

9. The child seat fixing structure for an automobile according to claim 8, wherein a stopper fixedly connected with the two longitudinal bars is further provided at the rear of the cross bar.

10. The child seat fixing structure for automobile according to claim 9, wherein a first rubber pad made of elastic material is fixedly connected to the front side of the stopper.